User's Manual

13
8. Specifications (Typical)
Protocol
ISO15693
Interface
Modbus RS-485 115kbit@8N1
RF Output Power (13.56MHz)
100mW@3.3VDC or 200mW@5VDC
Input Power
12VDC and 5VDC
Operating/Storage Temp
0 to 70°C (10 to 95% Relative Humidity – non-condensing)
9. Appendix A
RS-485 MODBUS Termination Scheme
10k
10k
1k
A (+)
5VDC
B (-)
Figure 2: ETC CCA MODBUS termination
Figure 3: ETC EIA/TIA-485 C/P-Bus 2x2W Modbus 8P8C Plug
Pin
Name
EIA/TIA-485
Description
1
CDA
A/A'
C-Bus Data (+)
2
CDB
B/B'
C-Bus Data (-)